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644 results for “Shrubs”
Survey 200 long term study of multiple sites in central Arizona-Phoenix: shrubs
Shrubs sample numbers of individuals, Survey 200 project within central Arizona-Phoenix, 1999-2005.
ABoVE: Alder Shrub Cover and Soil Properties, Alaska, 2019, V2
This dataset holds measures of vegetative cover and soil characteristics for sites in interior Alaska, U.S., along the James W. Dalton Highway (Alaska Route 11). The field data were collected during August in 2018 and 2019 to study the expansion of shrub cover, particularly alders (Alnus spp.) in tundra ecosystems and the potential impact of shrubs on soil properties. Samples were measured along transects at 5- to 10-m intervals. Soil samples were collected and analyzed in the laboratory. Vegetation variables include percent cover of mosses, lichens, graminoid species, shrubs, alder, birch (Betula spp.), and willow (Salix spp.) along with the biomass, size, and age structure of alder. An allometric model to estimate alder biomass was developed. Soil metrics include moisture content, conductivity, bulk density, carbon and nitrogen content and isotope ratios. The data include the maximum annual Normalized Difference Vegetation Index (NDVI) for 2019 and the trend in maximum NDVI for 2000-2020. This is version 2 of this dataset.The data are provided in comma-separated values (CSV) format.
ABoVE: Gridded 30-m Aboveground Biomass, Shrub Dominance, North Slope, AK, 2007-2016
This dataset includes 30-m gridded estimates of total plant aboveground biomass (AGB), the shrub AGB, and the shrub dominance (shrub/plant AGB) for non-water portions of the Beaufort Coastal Plain and Brooks Foothills ecoregions of the North Slope of Alaska. The estimates were derived by linking biomass harvests from 28 published field site datasets with NDVI from a regional Landsat mosaic derived from Landsat 5 and 7 satellite imagery. The data cover the period 2007-06-01 to 2016-08-31.
High-Resolution Shrub Biomass and Uncertainty Maps, Toolik Lake Area, Alaska, 2013
This dataset contains estimates for aboveground shrub biomass and uncertainty at high spatial resolution (0.80-m) across three research areas near Toolik Lake, Alaska. The estimates for August of 2013 were generated and mapped using Random Forest modeling with input variables of optimized LiDAR-derived canopy volume and height, mean NDVI from 4-band RGB color and near-IR orthophotographs, and harvested biomass data. Uncertainty in the final shrub biomass maps was quantified by producing separate maps showing the coefficient of variation (CV) of the Random Forest map estimates. Shrub biomass was harvested at Toolik Lake in 2014 and used to optimize inputs and validate the final model and these biomass data are also provided.
Data from: Shrubs facilitate recruitment of Caragana stenophylla Pojark: microhabitat amelioration and protection against herbivory
Key message: Mature Caragana stenophylla shrubs facilitated intraspecific sapling establishment by two mechanisms: microhabitat amelioration and protection against herbivory. Facilitation was mediated by climate, grazing and sapling age. Context: Pre-existing shrubs could facilitate sapling establishment of woody plants, however, how these facilitation vary across abiotic and biotic stress gradients and the underlying mechanisms remain unclear. Aims: The aim of this study is understanding the facilitation of shrub on sapling establishment, and how the two underlying mechanisms, microhabitat amelioration and protection against herbivory, vary across climatic aridity gradients, grazing gradients and sapling age. Methods: We conducted field sowing experiments to examine the facilitation of mature Caragana stenophylla Pojark on intraspecific sapling establishment. Results: Facilitation of C. stenophylla on sapling survival increased as drought stress, grazing intensity and sapling age increased. Microhabitat amelioration increased as drought stress and sapling age increased. Similarly, protection against herbivory increased as drought stress, grazing intensity and sapling age increased. Relative importance of microhabitat amelioration increased as drought stress increased, and relative importance of protection against herbivory increased as grazing intensity and sapling age increased. Conclusions: Facilitation of shrub on sapling establishment involves both microhabitat amelioration and protection against herbivory. Facilitation, the two mechanisms and relative importance between the two mechanisms would all be affected by climatic aridity, grazing intensity and sapling age. Shrub establishment has a positive feedback effect.
Data from: Shrubs facilitate recruitment of Caragana stenophylla Pojark: microhabitat amelioration and protection against herbivory
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Data from: Small-scale patterns in snowmelt timing affect gene flow and the distribution of genetic diversity in the alpine dwarf shrub Salix herbacea
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Figure 3 in A new species of Allorhogas (Hymenoptera: Braconidae: Doryctinae) inducing ovule galls on Miconia chamissois Naudinı a potentially invasive shrub in the Brazilian cerrado
Figure 3. Bayesian phylogram for the examined species of Allorhogas derived from the concatenated analysis with the COI and 28S markers. The black dots indicate the nodes with posterior probability bigger than 0,95. The name of the new species is shown in bold.
Figure 4 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 4. Regression analysis between the size of Enchenopa brasiliensis egg cluster and size of Solanum lycocarpum thorn cluster associated with eggs. Statistical parameters: R2 = 0.4967, F = 15.22, and P <0.0001.
Figure 3 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 3. Location and frequency of Enchenopa brasiliensis egg clusters on the abaxial leaf midribs and petioles.
Figure 5 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 5. Eggs of Enchenopa brasiliensis covered by froth and laid next to abaxial leaf midrib thorns of Solanum lycocarpum.
Figure 2 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 2. Location and frequency of Solanum lycocarpum thorns on the base, middle, base/middle (simultaneously) and tip of the abaxial leaf midrib.
Figure 1 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 1. Adult female of Enchenopa brasiliensis next to a midrib thorn on a Solanum lycocarpum leaf.
Figure 2 in A new species of Allorhogas (Hymenoptera: Braconidae: Doryctinae) inducing ovule galls on Miconia chamissois Naudinı a potentially invasive shrub in the Brazilian cerrado
Figure 2. Galls induced by Allorhogas uberlandiensis sp. nov. on the floral buds of its host plant, Miconia chamissois Naudin (Melastomataceae). (a) photograph of 'cerrado' biome showing plants of M. chamissois. (b) plant of M. chamissois. (c) fruits and 'fruit-like' galls. (d) internal longitudinal view of a 'fruit-like' gall showing the locules (GL) formed by the ovary hypertrophy. (e) internal transversal view showing the four locules, each one occupied by an ovule-gall. The insect remains inside the ovule-gall capsule until its emergence from pupa (IE). Afterwards, wings start to expand until it is still inside the fruit-like gall and after it leaves (EA) by opening another hollow (see in C; FLG). IF – Immature fruit, MF – Mature Fruit, FLG – Fruit-like gall, GL – Gall locule, IA – Emerged Adult, IE – Insect emergence, EOG – Empty Ovule-gall.
FIGURE 16a–l. Discolopeus viraktamathi n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 16a–l. Discolopeus viraktamathi n.gen. & sp., male and female genitalia, line drawing. a. Genital capsule, dorsally; b. Genital capsule, laterally; c. Subgenital plate, ventrally; d, e, f. Aedeagus, dorsally, laterally and ventrally respectively; g, h. Style, dorsally and laterally, respectively; i. Connective; j, k. Valvifers 1, laterally, variation; l. Sternite VII.
FIGURE 1a–n. Discolopeus diacaenus n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 1a–n. Discolopeus diacaenus n.gen. & sp., male and female genitalia, line drawings. a. Genital capsule, dorsally; b. Genital capsule, laterally; c. Subgenital plate, ventrally; d, e. Aedeagus with tooth subapically and apically respectively, laterally; f, g. Aedeagus with tooth subapically and apically respectively, dorsally; h, i. Style, dorsally, specimen with subapical teeth on aedeagal shaft and apically on shaft respectively; j. Connective, posterior view; k. Connective, dorsally; l Apex, aedeagal process, laterally; m. Style and aedeagus, laterally.
FIGURE 6a–n. Discolopeus gen.n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 6a–n. Discolopeus gen.n. species, habitus, D. diacaenus sp.n., a–d. Nymphs, mottled, light brown and dark brown colour forms respectively; e, f. D. colopeus sp.n., nymph, mottled and dark form, respectively; D. diacaenus sp.n., g, h. Biesiesfontein and Rondekop, laterally, respectively; i, j. Face, Biesiesfontein and Rondekop, respectively; k, hind wing male, jugum damaged; l, hind wing female; m, tegmina, male; n, tegmina, female.
FIGURE 2a–g. Discolopeus diacaenus n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 2a–g. Discolopeus diacaenus n.gen. & sp.; male and female genitalia; line drawing. Posterior abdominal apodeme; a. Anterior view; b. Dorsal view; Sternite VII, specimen localities; c. Biesiesfontein; d. Wiedouw; e. Bitterfontein; f. Rondekop; g. Nuwerus.
FIGURE 5a–l. Discolopeus gen.n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 5a–l. Discolopeus gen.n. species; habitus. D. diacaenus sp.n.; a. Biesiesfontein, male, yellow form; b. Calvinia, male; c. Biesiesfontein, male; d, e. Rondekop, male and female respectively; f. Doring River, male; g. Wiedouw, female; D. lissus sp.n.; h, i. Garies, male and female respectively; D. colopeus sp.n., Biesiesfontein; j, k, l. Female, male, pale form, male, dark form respectively.
Fig. 2. Frankenia fruticosa, Moedverloren. A in Frankenia fruticosa (Frankeniaceae), a new dwarf shrub from the Knersvlakte, Western Cape
Fig. 2. Frankenia fruticosa, Moedverloren. A, habit (lens cap 50 mm diam.); B–D, detail of inflorescences and flowers. Photographer: Nick Helme.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.